NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Evaluation of ultraviolet spectrophotometry for simultaneous analysis of alkylbenzenes, alkylnaphthalenes, alkylanthracenes/phenanthrenes and total aromatics in mid-distillate fuelsA rapid ultraviolet spectrophotometric method for the simultaneous determination of aromatics in middistillate fuels was developed and evaluated. In this method, alkylbenzenes, alkylnaphthalenes, alkylanthracenes/phenanthracenes and total aromatics were determined from ultraviolet spectra of the fuels. The accuracy and precision were determined using simulated standard fuels with known compositions. The total aromatics fraction accuracy was 5% for a Jet A type fuel and 0.6% for a broadened properties jet turbine type fuel. Precision, expressed as relative standard deviations, ranged from 2.9% for the alkylanthracenes/phenanthrenes to 15.3% for the alkylbenzenes. The accuracy, however, was less for actual fuel samples when compared to the results obtained by a mass spectrometric method. In addition, the ASTM D-1840 method for naphthalenes by ultraviolet spectroscopy was evaluated.
Document ID
19830007212
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Kim, W. S.
(NASA Lewis Research Center Cleveland, OH, United States)
Seng, G. T.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 4, 2013
Publication Date
November 1, 1982
Subject Category
Propellants And Fuels
Report/Patent Number
NASA-TM-83032
NAS 1.15:83032
E-1470
Accession Number
83N15483
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
No Preview Available